Q2 Interim Review

Discuss how the total amount of charge possessed by the system of two blocks before the charging process compares to the total charge of the system after the charging process.

• The total charge remains the same before and after the charging process.

• The total charge increases after the charging process.

• The total charge decreases after the charging process.

• The total charge is zero before and after the charging process.

Can electrons move between the two blocks if they are not touching?

• Yes, electrons can move between the blocks without touching.

• No, electrons cannot move between the blocks without touching.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

A metal block has a charge of -10 units. What will happen when contact is made between the block and the grounding rod?

• Electrons will move from ground to block and the block becomes more negatively-charged.

• Electrons will move from block to ground and the block becomes neutral.

• Electrons will move from ground to block and the block becomes neutral.

• Electrons will move from block to ground and the block becomes more negatively-charged.

What effect does the distance between objects have on their gravitational force?

• Gravitational force increases with distance.

• Gravitational force decreases with distance.

• Gravitational force remains constant regardless of distance.

• Gravitational force is not affected by distance.

Tags

NGSS.HS-PS2-4

When a magnetic needle is placed in the Earth’s magnetic field, it __________ with the Earth’s __________ __________.

• aligns,

  electric field

• points,

  North Pole

• aligns,

  South Pole

• deflects,

  Equator

What tool measures the direction of a magnetic field?

• Voltmeter

• Compass

• Light bulb

• Ruler

When a motor turns on – why does the loop turn?

• The battery pushes protons through the wire to produce electric current and cause magnetism.

• The battery causes the permanent magnet to move electrons and make an electric field.

• The battery moves electrons through the wire, creating a magnetic field, causing it to attract and repel from the poles of the permanent magnet.

• The permanent magnet moves and produces an electric current.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

If there is 2 N of gravitational force between two objects, and then the distance is doubled, what would be the new force?

• 1 N

• 4 N

• 1/4 N

• 1/2 N

Tags

NGSS.HS-PS2-4

A gravitational field is generated by any object that has what property?

• Mass

• Magnetism

• Charge

• Conductivity

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NGSS.HS-PS2-4

CALCULATOR QUESTION: What is the gravitational force between two 100 kg objects located 10 m from each other?

• 100 N

• 9*10^11 N

• 667 N

• 6.67*10^-9 N

Tags

NGSS.HS-PS2-4